CLHS: Function UNUSE-PACKAGE

#

Function UNUSE-PACKAGE

Syntax:

unuse-package packages-to-unuse `&optional` package => t

Arguments and Values:

packages-to-unuse---a designator for a list of package designators.

package---a package designator. The default is the current package.

Description:

unuse-package causes package to cease inheriting all the external symbols of packages-to-unuse; unuse-package undoes the effects of use-package. The packages-to-unuse are removed from the use list of package.

Any symbols that have been imported into package continue to be present in package.

Examples:

     (in-package "COMMON-LISP-USER") =>  #<PACKAGE "COMMON-LISP-USER">
     (export (intern "SHOES" (make-package 'temp)) 'temp) =>  T
     (find-symbol "SHOES") =>  NIL, NIL
     (use-package 'temp) =>  T
     (find-symbol "SHOES") =>  SHOES, :INHERITED
     (find (find-package 'temp) (package-use-list 'common-lisp-user)) =>  #<PACKAGE "TEMP">
     (unuse-package 'temp) =>  T
     (find-symbol "SHOES") =>  NIL, NIL

Side Effects:

The use list of package is modified.

Affected By:

Current state of the package system.

Exceptional Situations: None.

See Also:

use-package, package-use-list

Notes: None.

The following X3J13 cleanup issue, not part of the specification, applies to this section:

- PACKAGE-FUNCTION-CONSISTENCY:MORE-PERMISSIVE

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